Trace Dempsey Cyrus (born February 24, 1989) is an American musician. He was the former guitarist, songwriter and vocalist of Metro Station before the band broke up. Currently, he is the owner of a clothing company called From Backseats to Bedrooms. Cyrus is the adopted son of country singer Billy Ray Cyrus. He is the older brother of Miley Cyrus, Braison Cyrus, and Noah Cyrus, and the younger brother of Brandi Cyrus.

Cyrus was born in Ashland, Kentucky. Cyrus's mother is Leticia "Tish" Finley Cyrus. His biological father is Baxter Neal Helson, but he was adopted by Billy Ray Cyrus. He spent his school holidays touring and performing with Billy Ray. He has a younger sister, Miley, who starred in the Disney Channel original television series Hannah Montana. In an interview with MTV, he discussed recording with Miley: "Actually, I'm going to sing on one of the tracks on her next album. I can't say much about it right now, but we will be collaborating." Cyrus has many tattoos on his arms and chest, including the words "stay gold" tattooed on his knuckles. In 2006, he worked at a shopping mall in Burbank, California and dropped out of La Cañada High School.

Miley Ray Cyrus (born Destiny Hope Cyrus; November 23, 1992) is an American actress and pop singer-songwriter. She achieved wide fame for her role as Miley Stewart/Hannah Montana on the Disney Channel sitcom Hannah Montana.

Cyrus recorded music for the soundtracks, Hannah Montana (2006) and Hannah Montana 2/Meet Miley Cyrus (2007), released by Walt Disney Records. With the success of the Hannah Montana franchise she established herself as a teen idol. In 2007, Cyrus signed to Hollywood Records to pursue a solo career. She embarked upon the Best of Both Worlds Tour the same year, in which she performed as both herself and in character as Hannah Montana. The tour was eventually turned into a high-grossing concert film titled Hannah Montana & Miley Cyrus: Best of Both Worlds Concert (2008). In July 2008, Cyrus released her first solo album, Breakout (2008), which was commercially successful.

She began her foray into film by providing the voice of "Penny" in the animated film Bolt (2008). Cyrus earned a nomination for the Golden Globe Award for Best Original Song for her performance of Bolt's theme song, "I Thought I Lost You". She also reprised her role as Miley Stewart/Hannah Montana in Hannah Montana: The Movie (2009). The Hannah Montana: The Movie' soundtrack introduced her to new audiences within country and adult contemporary markets.

Brenda Song (born March 27, 1988) is an American actress, film producer, and model. Song started in show business as a child fashion model. Her early television work included roles in the shows Fudge (1995) and 100 Deeds for Eddie McDowd (1999). After many commercials and television roles in the late 1990s, Song won a Young Artist Award for her performance in The Ultimate Christmas Present (2000). She made her screen debut in Santa with Muscles (1996) and appeared in 20th Century Fox's Like Mike (2002). Her movies on the Disney Channel include Get a Clue (2002) and Stuck in the Suburbs (2004).

In 2005 Song began playing the lead female role of London Tipton in the Disney series The Suite Life of Zack & Cody and The Suite Life on Deck. The character was noted as Disney's longest continuous female character in October 2009. Song gained more fame after she played the title role in the Disney Channel Original Movie, Wendy Wu: Homecoming Warrior, which received over 5.7 million viewers on the night of its premiere. In 2006 Song was named the "Queen of Disney" by Cosmogirl Magazine.

Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American singer-songwriter, musician, and actress. Her earliest roles included Angela on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in the Disney sitcom Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program. She is also involved in philanthropic activities through charity work and various social and environmental causes.

As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. The album debuted at number two on the Billboard 200 selling 89,000 copies in the first week. It has since shipped over 500,000 copies, earning a gold certification in the United States. Lovato released her second album, Here We Go Again, on July 21, 2009. The album debuted at number one on the Billboard 200, selling 108,000 copies in the first week. Her third studio album, Unbroken, was released on September 20, 2011 and peaked at number four on the Billboard 200. She is working on her fourth studio album.